Such domestic arrangements seem strange to us, but they did not exclude either conjugal or parental affection. On the contrary, the presence of such sentiments has impressed travelers among even the rudest tribes, as the Eskimos, the Yumas and the hordes of the Chaco;[55] and Miss Alice Fletcher tells me she has constantly noted such traits in her studies of life in the wigwam. The husband and father will often undergo severe privations for his wife and children. The error to which I have referred of classifying the natives into wild and civilized tribes has led to regarding the one as agricultural, and the other as depending exclusively on hunting and fishing. Such was not the case. The Americans were inclined to agriculture in nearly all regions where it was profitable. Maize was cultivated both north and south to the geographical extent of its productive culture; beans, squashes, pumpkins, and potatoes were assiduously planted in suitable latitudes; the banana was rapidly accepted after its introduction, even by tribes who had never seen a white man; cotton for clothing and tobacco as a luxury were staple crops among very diverse stocks. The Iroquois, Algonkins and Muskokis of the Atlantic coast tilled large fields, and depended upon their harvests for the winter supplies. The difference between them and the sedentary Mexicans or Mayas in this respect was not so wide as has been represented. It was a serious misfortune for the Americans that the fauna of the continent did not offer any animal which could be domesticated for a beast of draft or burden. There is no doubt but that the horse existed on the continent contemporaneously with post-glacial man; and some palæontologists are of opinion that the European and Asian horses were descendants of the American species;[56] but for some mysterious reason the genus became extinct in the New World many generations before its discovery. The dog, domesticated from various species of the wolf, was a poor substitute. He aided somewhat in hunting, and in the north as an animal of draft; but was of little general utility. The lama in the Cordilleras in South America was prized principally for his hair, and was also utilized for burdens, but not for draft.[57] Nor were there any animals which could be domesticated for food or milk. The buffalo is hopelessly wild, and the peccary, or American hog, is irreclaimable in its love of freedom.